"""
 Copyright (C) 2018-2020 Intel Corporation

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
"""

import unittest

import numpy as np
from generator import generator, generate

from extensions.ops.ONNXResize11 import ONNXResize11Op
from mo.front.common.partial_infer.utils import int64_array
from mo.graph.graph import Node
from mo.utils.unittest.graph import build_graph


graph_node_attrs_sizes = {
    'input': {'type': 'Parameter', 'kind': 'op'},
    'input_data': {'kind': 'data', 'shape': None, 'value': None},
    'roi': {'type': 'Const', 'kind': 'op', 'shape': None, 'value': None},
    'roi_data': {'kind': 'data', 'shape': None, 'value': None},
    'scales': {'type': 'Const', 'kind': 'op', 'shape': None, 'value': None},
    'scales_data': {'kind': 'data', 'shape': None, 'value': None},
    'sizes': {'type': 'Const', 'kind': 'op', 'shape': None, 'value': None},
    'sizes_data': {'kind': 'data', 'shape': None, 'value': None},
    'onnx_resize11': {
        'op': 'ONNXResize11', 'kind': 'op', 'mode': 'nearest', 'nearest_mode': 'round_prefer_floor',
        'coordinate_transformation_mode': 'half_pixel', 'cube_coeff': -0.75
    },
    'onnx_resize11_data': {'kind': 'data', 'value': None, 'shape': None},
    'op_output': {'kind': 'op', 'op': 'Result'},
}

graph_edges_sizes = [
    ('input', 'input_data'),
    ('roi', 'roi_data'),
    ('sizes', 'sizes_data'),
    ('scales', 'scales_data'),
    ('input_data', 'onnx_resize11', {'in': 0}),
    ('roi_data', 'onnx_resize11', {'in': 1}),
    ('scales_data', 'onnx_resize11', {'in': 2}),
    ('sizes_data', 'onnx_resize11', {'in': 3}),
    ('onnx_resize11', 'onnx_resize11_data'),
    ('onnx_resize11_data', 'op_output'),
]


graph_node_attrs_scales = {
    'input': {'type': 'Parameter', 'kind': 'op'},
    'input_data': {'kind': 'data', 'shape': None, 'value': None},
    'roi': {'type': 'Const', 'kind': 'op', 'shape': None, 'value': None},
    'roi_data': {'kind': 'data', 'shape': None, 'value': None},
    'scales': {'type': 'Const', 'kind': 'op', 'shape': None, 'value': None},
    'scales_data': {'kind': 'data', 'shape': None, 'value': None},
    'onnx_resize11': {
        'op': 'ONNXResize11', 'kind': 'op', 'mode': 'nearest', 'nearest_mode': 'round_prefer_floor',
        'coordinate_transformation_mode': 'half_pixel', 'cube_coeff': -0.75
    },
    'onnx_resize11_data': {'kind': 'data', 'value': None, 'shape': None},
    'op_output': {'kind': 'op', 'op': 'Result'},
}

graph_edges_scales = [
    ('input', 'input_data'),
    ('roi', 'roi_data'),
    ('scales', 'scales_data'),
    ('input_data', 'onnx_resize11', {'in': 0}),
    ('roi_data', 'onnx_resize11', {'in': 1}),
    ('scales_data', 'onnx_resize11', {'in': 2}),
    ('onnx_resize11', 'onnx_resize11_data'),
    ('onnx_resize11_data', 'op_output'),
]


@generator
class TestONNXResize11Op(unittest.TestCase):
    @generate(*[([1, 260, 100, 150], [1, 260, 200, 350], [1, 260, 200, 350], [1.0, 1.0, 1.0, 1.0]),
                ([1, 260, 100, 150], [1, 260, 200, 350], [1, 1, 200, 350], [1.0, 1.0, 1.0, 1.0]),
                ([5, 14, 300, 40], [5, 14, 140, 280], [1, 1, 140, 280], [1.0, 1.0, 1.0, 1.0]),
                ([5, 14, 300, 40], [5, 14, 140, 280], [5, 14, 140, 280], [1.0, 1.0, 1.0, 1.0]),
                ([1, 3, 260, 100, 150], [1, 3, 780, 200, 350], [1, 3, 780, 200, 350], [1.0, 1.0, 1.0, 1.0, 1.0]),
                ([1, 3, 450, 100, 150], [1, 3, 260, 200, 350], [1, 3, 260, 200, 350], [1.0, 1.0, 1.0, 1.0, 1.0]),
                ([5, 14, 1000, 300, 40], [5, 14, 500, 140, 280], [1, 1, 500, 140, 280], [1.0, 1.0, 1.0, 1.0, 1.0]),
                ([5, 14, 1000, 300, 40], [5, 14, 500, 140, 280], [5, 14, 500, 140, 280], [1.0, 1.0, 1.0, 1.0, 1.0])])
    def test_onnx_resize11_using_sizes(self, input_shape, output_shape, sizes, scales):
        np_scales = np.array(scales)
        np_sizes = int64_array(sizes)
        graph = build_graph(nodes_attrs=graph_node_attrs_sizes,
                            edges=graph_edges_sizes,
                            update_attributes={
                                'input_data': {'shape': int64_array(input_shape)},
                                'scales': {'shape': int64_array(np_scales.shape), 'value': np_scales},
                                'scales_data': {'shape': int64_array(np_scales.shape), 'value': np_scales},
                                'sizes': {'shape': int64_array(np_sizes.shape), 'value': np_sizes},
                                'sizes_data': {'shape': int64_array(np_sizes.shape), 'value': np_sizes},
                            })
        node = Node(graph, 'onnx_resize11')
        ONNXResize11Op.onnx_resize_infer(node)

        msg = "ONNXResize11 infer failed for case: sizes={}, scales={}, expected_shape={}, actual_shape={}"

        self.assertTrue(np.array_equal(graph.node['onnx_resize11_data']['shape'], int64_array(output_shape)),
                        msg.format(sizes, scales, output_shape, graph.node['onnx_resize11_data']['shape']))

    @generate(*[([1, 260, 100, 150], [1, 260, 200, 350], [1.0, 1.0, 2.0, 350 / 150]),
                ([1, 3, 100, 200], [1, 3, 350, 150], [1.0, 1.0, 3.5, 150 / 200]),
                ([5, 14, 300, 40], [5, 14, 140, 280], [1.0, 1.0, 140 / 300, 7.0]),
                ([5, 14, 300, 40], [5, 14, 140, 560], [1.0, 1.0, 140 / 300, 14.0]),
                ([1, 3, 260, 100, 150], [1, 3, 780, 200, 350], [1.0, 1.0, 3.0, 2.0, 350 / 150]),
                ([1, 3, 450, 100, 150], [1, 3, 260, 200, 350], [1.0, 1.0, 260 / 450, 2.0, 350 / 150]),
                ([5, 14, 1000, 300, 40], [5, 14, 500, 140, 280], [1.0, 1.0, 0.5, 140 / 300, 7.0]),
                ([4, 3, 180, 1340], [4, 3, 60, 804], [1.0, 1.0, 0.33333334, 0.6]),
                ([4, 3, 500, 180, 1340], [4, 3, 750, 60, 804], [1.0, 1.0, 1.5, 0.33333334, 0.6])])
    def test_onnx_resize_using_scales(self, input_shape, output_shape, scales):
        np_scales = np.array(scales)
        graph = build_graph(nodes_attrs=graph_node_attrs_scales,
                            edges=graph_edges_scales,
                            update_attributes={
                                'input_data': {'shape': int64_array(input_shape)},
                                'scales': {'shape': int64_array(np_scales.shape), 'value': np_scales},
                                'scales_data': {'shape': int64_array(np_scales.shape), 'value': np_scales},
                            })
        node = Node(graph, 'onnx_resize11')
        ONNXResize11Op.onnx_resize_infer(node)

        msg = "ONNXResize11 infer failed for case: scales={}, expected_shape={}, actual_shape={}"

        self.assertTrue(np.array_equal(graph.node['onnx_resize11_data']['shape'], int64_array(output_shape)),
                        msg.format(scales, output_shape, graph.node['onnx_resize11_data']['shape']))
